package com.heima.kafka.listener;

import com.alibaba.fastjson.JSON;
import com.heima.kafka.pojo.User;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;

@Component
public class HelloListener {

    /**
     * 接收消息
     * @param message
     */
    @KafkaListener(topics = "user_topic")
    public void onMessage(String message){
        if(!StringUtils.isEmpty(message)){
            User user= JSON.parseObject(message,User.class);
            System.out.println(user);
        }

    }
}
